Articulated windshield wiper blade assembly

Details Articulated windshield wiper blade assembly Articulated windshield wiper blade assembly

1996-04-18

1996-11-12

Graham, Gary K.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

15250451, 1525048, 1525033, 1525044, B60S 138, B60S 104

Patent

active

055727646

ABSTRACT:
An articulated twin spline windshield wiper blade assembly for acceptance in the claws of a conventional windshield wiper arm assembly comprises a relative high durometer polymeric female spline having a circular channel therein for journaling of a male spline of a relatively low durometer elastomeric material. The female spline has a pair of oppositely directed flanges that are accepted in the claws of the wiper arm assembly and lie in a plane containing the central axis of the circular channel therein to minimize the moment of inertia of the female spline about an axis extending at a right angle to the central axis of the channel therein and parallel to a surface to be wiped. The cylindrical channel of the female spline comprises arcuate legs having circumferentially spaced stops, respectively, which are flared radially outwardly to limit rotation of the male spline and serve as a weather shield to protect the blade assembly against the infusion of ice and debris and utilize windage to apply a downward force against the surface being wiped.

REFERENCES:
patent: 1973366 (1934-09-01), Anderson
patent: 2179451 (1939-11-01), Horton
patent: 3766591 (1973-10-01), Soito
patent: 3820188 (1974-06-01), Moorhead et al.
patent: 4698874 (1987-10-01), Fritz, Jr.
patent: 4704762 (1987-11-01), Beneteau et al.
patent: 4722112 (1988-02-01), Schoub et al.
patent: 5392488 (1995-02-01), Li

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